Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U1850* | U1850* | - | - |
| Ignition | U1850* | U1850* | - | - |
| Wake-Up Signal | P06E4* | U1850* | - | - |
| High Speed GMLAN Serial Data (+) | U0073, 1 | U1850* | U0073, 1 | - |
| High Speed GMLAN Serial Data (-) | U0073, 1 | U1850* | U0073, 1 | - |
| Ground | - | U1850* | - | - |
| * Other modules/DTCs may set with this fault. 1. Scan Tool Does Not Communicate With High Speed GMLAN Device. |
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